unit 1 BODY SYSTEMS

integumentary system

fxn: forms external body covering and protects deeper tissues from injury

organs: skin

skeletal system

fxn: protects and supports body organs and provides a framework for muscles

organs: bones

muscular system

fxns: allows manipulation of the environment, locomotion, maintains posture, facial expression

organs: skeletal muscle

lymphatic system

fxn: picks up fluid leaked from blood vessels and returns it to blood after cleaning

organs: spleen, lymph nodes, thymus

respiratory system

fxn: supplies the body with oxygen and removes carbon dioxide

organs: lungs, trachea, larynx

digestive system

fxn: breaks down food and absorbs nutrients into blood

organs: liver, stomach, small intestine, large intestine, pancreas

nervous system

fxn: control system

organs: brain, spinal cord

endocrine system

fxn: secrete hormone that regulate processes of the body

organs: thyroid gland, thymus, adrenal gland, pancreas, testes, ovaries

cardiovascular system

fxn: transports blood

organs: heart, blood vessel

urinary system

fxn: eliminates waste and regulates water, electrolytes, and acid-base balance

organs: kidneys, ureters, urinary bladder

reproductive system

fxn: production of offspring

organs: male prostate gland and testes, female ovaries and uterus